About: http://webisa.webdatacommons.org/286358512

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Secondary nutrients such as calcium, magnesium, and sulfur can be important if the soil is substantially depleted of these nutrients.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com